Vigorous Enterprise Messenger is developed especially for enterprise to create private and secure messaging network, running on LAN as well as Internet. It provides features similar to Yahoo, AOL and MSN Messenger programs. General features : Instant messaging - send messages to one or more online and/ or offline users. File transfers - send and receive files to one or more online and/ or offline users. Can even resume file transfers. Audio conversation - Audio conversation(VOIP) with contact. Video conversation - Video conversation with contact. Broadcast message - Send message to whole department or even whole company. Remote screenshots - View screenshots of a remote screen. Message history - Refer back to a previous conversation to reference a message. Offline sending file or message - Messages or files sent to offline users are stored temporarily by server and will be send when they are first logged-in. Contact list - Different views of contact list, including sort by department, sort by online/offline status or sort by "My Contacts" "My Department""Recent Contacts".Let you easy to access your contact. Graphical emoticons - Graphical emoticons in chat phrases and instant messages. Over 60 emoticons are available. User details - View details of remote users and specify your own details: full name, gender, age and work/contact information. Alerts - Define alerts on some events, such as: contact online/offline;receive message/file; receive audio/video conversation invitation and so on.